Rechteck mit Löcher

degenerated
id = 32
time = 00:00:00.3
unique solutions = 0
animate    
XML
Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 16:51:54 up 72 days, 23:02, 1 user, load average: 4.81, 4.80, 4.84